I tested with many GSI ROMs and all workin fine and usable, except VoLTE, Second SIM Card, Magisk and phisical buttons (home, back and recents). It's as usable as an native ROM (non-GSI).
If you don't need VoLTE, 2 SIM Cards or root you cam use it.
The phisical buttons don't work due to the GSI ROMs limitation because a GSI needs to work in all devices with Treble working, and some devices don't have phisical buttons.
Fingerprint sensor still working.
Sent from my SM-G570M/DS using Tapatalk.